If only people would educate themselves.....
As misleading as that chart is, it's also illustrating the opposite point you seem to be trying to make.
Basically what it says is the 60-80% category gets taxed about the same as the top 1%, while the 40-60% group gets taxed at a rate only slightly less.
In other words, the "progressive income tax" begins to fail around the 80% mark, and once it hits the 95% mark its actually becomes a "regressive income tax" that taxes you less when you make more money.
There are so many easy ways to fix this that there is absolutely no excuse either for what hasn't been done, nor for what has been done (raising taxes on the middle class) by either Dems or Repubs except that they are all liars and represent their own self-interest not their constituents.
Every time a Dem opens his/her mouth about raising taxes on the rich, they are lying - they are talking about raising taxes on the middle class.
The only real difference with Repubs is that they lower taxes on everyone - on the middle class a little bit, and on the rich a lot.
Some of the really easy ways to fix that chart :
Levy a 20% tax on any home purchased for over $500k.
Levy a 20% luxury tax on jewelry, boats, motor vehicles (cars, motorcycles, etc) that cost more than $50k.
Stop giving tax breaks for yachts and private jets.
Stop giving tax breaks for hedge fund money managers, make them pay income tax on their fees like everyone else (they currently only pay 15%).
etc etc etc.
But of course they won't do that. Not the Dems, not the Repubs, not anyone who is crooked enough to get elected.